What it is
A liquid made from seaweed, almost always a brown seaweed from the north atlantic (ascophyllum nodosum, "kelp"). It has been used in farming for centuries: coastal peoples put seaweed in their gardens.
What it does
It's not a fertilizer: it hardly has any nitrogen, phosphorus or potassium. It's a "biostimulant": it brings natural plant hormones (the ones that grow roots and shoots), amino acids and a little of many minerals. The plant builds more root, grows more eagerly and handles stress better (heat, transplants).
How to use
It's diluted in the watering water or sprayed on the leaves, in very small doses. It works best in the first weeks, when the plant builds root and leaves. In flowering it's used less.
Common mistakes
- Thinking more is better: too much, and the hormones throw growth off and seedlings get stressed. And believing it replaces fertilizer: without fertilizer, the plant still goes hungry.
▲ Pros
- The young plant grows faster: finishes sooner
- Not fertilizer: no burn with the wick
▼ Cons
- Two doses in a row stress a seedling
🎮 Practice it in UnderGrow
It's an optional add-on (shop › add-ons). It works for the first 21 game days (21 real h) after sprouting: each dose makes the plant grow +20 % faster for 72 game h (3 real h). It doesn't raise the nutrient bar. For a seedling, two doses less than 24 game h (1 real h) apart stress it.
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